Summary Of All Bio Things

Question 1

What is the basic unit of life

Answer 1

The cell

Question 2

What does reproduction involve

Answer 2

The transmission of hereditary information from organisms to their offspring

Question 3

When living things grow what happens to their cells

Answer 3

They enlarge and divide

Question 4

What is a hypothesis

Answer 4

A statement that explains observations and that can be tested

Question 5

What are atoms composed of

Answer 5

Protons neutrons and electrons

Question 6

How do atoms achieve stability

Answer 6

When their outermost energy level is filled

Question 7

What is a chemical reaction

Answer 7

The process of breaking chemical bonds, rearranging the atoms, and forming new bonds

Question 8

When is a covalent bond formed

Answer 8

When two atoms share electrons

Question 9

When is an ionic bond formed

Answer 9

When one atom gives up an electron to another. The positive ion is then attracted to a negative ion to form the ionic bond

Question 10

What are buffers

Answer 10

Chemicals that neutralize the effects of adding small amounts of either an acid or a base to a solution

Question 11

Is water a polar molecule

Answer 11

Yes

Question 12

What is responsible for the cohesion and capillarity that water molecules display

Answer 12

Hydrogen bonding

Question 13

Can water absorb a large amount of thermal energy before its own temperature begins to rise

Answer 13

Yes

Question 14

What bond together to form complex molecules called polymers

Answer 14

Simple molecules known as monomers

Question 15

When are monomers joined together to form polymers

Answer 15

In a condensation reaction

Question 16

When are polymers broken down into monomers

Answer 16

During hydrolysis

Question 17

What is a protein formed from

Answer 17

Amino acids

Question 18

What are amino acids monomers of

Answer 18

amino acids are monomers of peptides or proteins.

Question 19

What are amino acids joined by

Answer 19

Peptide bonds

Question 20

What is a long chain of amino acids called

Answer 20

A polypeptide

Question 21

Most enzymes are what

Answer 21

Proteins

Question 22

What do most lipids contain

Answer 22

Fatty acids, organic molecules that have a hydrophilic end and a hydrophobic end

Question 23

What’s the difference between saturated and unsaturated lipids

Answer 23

Unsaturated lipids have one or more pairs of carbon atoms joined by double bonds while saturated lipids have no double bonds between their carbon atoms

Question 24

What does a cells shape reflect

Answer 24

It’s function

Question 25

What is the difference between eukaryotic and prokaryotic cells

Answer 25

Eukaryotic cells contain a nucleus and membrane bound organelles while prokaryotes contain neither

Question 26

What does the cell membrane consist mostly of

Answer 26

Lipids and proteins

Question 27

What does the rough endoplasmic reticulum do

Answer 27

Prepares proteins for export from the cell or insertion into the cell membrane

Question 28

What does the smooth endoplasmic reticulum lack

Answer 28

Ribosomes

Question 29

What do lysosomes contain

Answer 29

Hydrolysic

Question 30

Biology is the study of what

Answer 30

Life, ranging from the study of unicellular organisms to the study of the global interactions among millions of organisms